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| author | Richard Biener <rguenther@suse.de> | 2017-07-25 10:59:15 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-07-25 10:59:15 +0000 |
| commit | fdd293743d43c5721e75d951d57d73b50af6738d (patch) | |
| tree | a03d62dde8000a97753d9190ba5eb51aed9bb245 /gcc/tree-vect-loop-manip.c | |
| parent | e5df270eeccbc5892b7f40769e7725b13a36f7df (diff) | |
| download | gcc-fdd293743d43c5721e75d951d57d73b50af6738d.zip gcc-fdd293743d43c5721e75d951d57d73b50af6738d.tar.gz gcc-fdd293743d43c5721e75d951d57d73b50af6738d.tar.bz2 | |
re PR tree-optimization/81303 (410.bwaves regression caused by r249919)
2017-07-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/81303
* tree-vect-loop-manip.c (vect_loop_versioning): Build
profitability check against LOOP_VINFO_NITERSM1.
From-SVN: r250503
Diffstat (limited to 'gcc/tree-vect-loop-manip.c')
| -rw-r--r-- | gcc/tree-vect-loop-manip.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/tree-vect-loop-manip.c b/gcc/tree-vect-loop-manip.c index b76b515..97080a6 100644 --- a/gcc/tree-vect-loop-manip.c +++ b/gcc/tree-vect-loop-manip.c @@ -2136,7 +2136,7 @@ vect_loop_versioning (loop_vec_info loop_vinfo, tree arg; profile_probability prob = profile_probability::likely (); gimple_seq gimplify_stmt_list = NULL; - tree scalar_loop_iters = LOOP_VINFO_NITERS (loop_vinfo); + tree scalar_loop_iters = LOOP_VINFO_NITERSM1 (loop_vinfo); bool version_align = LOOP_REQUIRES_VERSIONING_FOR_ALIGNMENT (loop_vinfo); bool version_alias = LOOP_REQUIRES_VERSIONING_FOR_ALIAS (loop_vinfo); bool version_niter = LOOP_REQUIRES_VERSIONING_FOR_NITERS (loop_vinfo); @@ -2144,7 +2144,7 @@ vect_loop_versioning (loop_vec_info loop_vinfo, if (check_profitability) cond_expr = fold_build2 (GE_EXPR, boolean_type_node, scalar_loop_iters, build_int_cst (TREE_TYPE (scalar_loop_iters), - th)); + th - 1)); if (version_niter) vect_create_cond_for_niters_checks (loop_vinfo, &cond_expr); |